"[…]Oceans of Kansas tells the story of the five million years when giant sharks, marine reptiles called mosasaurs, pteranodons, and birds with teeth flourished in and around this shallow sea. The abundant and well-preserved remains of these prehistoric animals were the source of great excitement in the scientific community of the day when they were first discovered in the 1860s. Two of the best-known fossil hunters of the time, E. D. Cope and O. C. Marsh, competed vigorously to recover the best specimens. During the past 130 years, thousands have been collected and sent to museums around the world."